
% Table created by stargazer v.5.2 by Marek Hlavac, Harvard University. E-mail: hlavac at fas.harvard.edu
% Date and time: Fri, Apr 22, 2022 - 21:10:29
\begin{table}[!htbp] \centering 
  \caption{Moderating effect of unions on effect of import competition on voting,
        exposure-robust standard errors} 
  \label{table_union_ex} 
\begin{tabular}{@{\hspace{-10pt}}l@{\hspace{-10pt}}cccccc} 
\toprule 
 & (1) & (2) & (3) & (4) & (5) & (6)\\ 
\midrule  
\\[-2.1ex] $\Delta\textrm{IPW}$ & $-$0.001 & $-$0.009 & $-$0.011 & $-$0.025$^{***}$ & $-$0.015$^{***}$ & $-$0.013$^{*}$ \\ 
  & (0.008) & (0.006) & (0.009) & (0.008) & (0.006) & (0.007) \\ 
 \addlinespace 
\midrule  
Years & All & All & 1900--1910 & 1900--1910 & 1900--1910 & 1900--1910 \\ 
Union sub-sample & 2H & 1H & 2H & 1H & All & All \\ 
Union x election &  &  &  &  & x & x \\ 
Initial MF x election & x & x & x & x &  & x \\ 
First stage F-stat & 9.5 & 21.4 & 8.2 & 7.6 & 13.8 & 13.5 \\ 
Observations & 760 & 760 & 380 & 380 & 380 & 380 \\ 
\bottomrule 
\textit{Note:}  & \multicolumn{6}{l}{$^{*}$p$<$0.1; $^{**}$p$<$0.05; $^{***}$p$<$0.01} \\ 
 & \multicolumn{6}{l}{\parbox[t]{0.8\textwidth}{
        This table replicates the results of models (5)--(10) of Table \ref{table_union_cl}
        using the aggregation
        and standard error calculation methods recommended by Borusyak, Hull,
        and Jaravel (2022) (their method does not allow us to estimate standard errors for
        variables interacted with the shock).
        Constituency-level variables aggregated up to the industry level,
        dependent variable is share
        of the vote for the Conservative Party. Data on union membership relative
        to population in 1892 at the county level is taken from Sidney and Beatrice Webb,
        \emph{The History of Trade Unionism} (London: Longmans, Green and Co., 1896).
        Models (1) and (3) are estimated for constituencies with above-median
        unionization, (2) and (4) for constituencies with below-median unionization.
        Models (5) and (6) replicate regressions from table \ref{table_votes_compact_cl},
        adding controls for unionization interacted with year dummy variables.
        All models include constituency and election fixed effects,
        Standard errors clustered by industry in parentheses.}} \\ 
\end{tabular} 
\end{table} 
